A309422 - OEIS

A309422

Numbers k such that 7^k + k^7 is prime.

54, 3076, 11796 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`a(4) > 110000.`
	LINKS	`Table of n, a(n) for n=1..3.`
	CROSSREFS	`Cf. A001596, A114974, A309421.` `Sequence in context: A189200 A042405 A187304 * A212705 A046199 A245831` `Adjacent sequences: A309419 A309420 A309421 * A309423 A309424 A309425`
	KEYWORD	`nonn,bref,more,hard`
	AUTHOR	`Hugo Pfoertner, Jul 30 2019`
	STATUS	`approved`

Last modified March 27 22:47 EDT 2023. Contains 361575 sequences. (Running on oeis4.)